how to clear check engine 1993 300E
 

I was able to clear all fault codes, 6 of them. The car runs good for now.
Read most of the fault code threads but I don't see anything on exactly how to clear the check engine light.
thanks

It's been a while since I've done it, but after you've checked the codes, wait at least two seconds, then hold the button down for six seconds. Each code must be erased individually.

If you still have a check engine light, then you either have a new code, or you still have an old code that you didn't erase.

I saw your earlier post with all of the various fault codes. You had so many that I couldn't offer any advice.

My guess is that some of the codes could be old, i.e. when a part was replaced or disconected, it sometimes stores a code.

You should also know that when you have one particular problem, it frequently sets off other codes. The problem is knowing which codes are real (germaine to your problem), and which codes are ancillary.

I'm nearly 100% confindent that you do have a problem, otherwise code(s) wouldn't have been stored, and your check engine light wouldn't have illuminated.

You should also be aware that there are 26 individual systems that will cause a check engine light to be illuminated. Your diagnostic module stores many codes, but only the 26 codes, all of them related to smog emissions, will trip a check engine light.

Very common codes on your engine (and mine) are related to the O2 sensor, the EGR system, and the transmission upshift delay valve.

Thanks SUGINAMI, the car has been acting up afew times. Last time was the OVP, I was able to re-solder the board and it run fine for a while. Some codes could have been from then. Now the engine runs fine and I only get one flash when I look for codes, I was able to clear the codes, I'll check again for one more.
Do you know hoe to check for more faults, using the other connectors in the box. 1-24 I think.
It is always my wife that is driving. I keep trying to take the car back but somehow she keeps working herself into the driver seat. She likes the car.

I know you replaced the headlights on yours, what lights did you install? I remeber seeing pics of your car, very cool ride I may add.

Been a while since I tried to manually erase the DM (diagnostic module).

I'm thinking your best bet would be to find your radio code and disconnect the battery.

thanks stevebfl, tried disconnecting the battery and the check engine came back. I don't have any fault codes though. :confused:

OVP's can't be resoldered or repaired. If you haven't replaced it since, I'd do so.

If you only get onen flash on the DM, then you've cleared the codes.

You can make a simple tester with parts bought at radio shack to check the flash codes for the other holes in the DM. Send me an e-mail and I'll send you a jpeg. The jpeg is on my other computer so I can't send it right now.

I think most guys that hang around here on the shop forum have replaced their head lights with orginal Euro headlights. They put out about 400% more light. No exaggeration. There are many, many sources for Euro's. Let me know if your interested and I can tell you where to find them.

You can also try the search function, as there is tons and tons of info in the archive. ebennz is the euro guru, in my opinion. omegabenz put together a group buy recently, too, and might be able to hook you up.

Thanks again Paul, yea please end me the Jpeg for the tester.
I've seen some of the posts regarding lights, being that you have the same car I was looking at minimizing the risk and doing the same work you did. The original lights really suck.

juanecheverria@msn.com

Meanwhile, please enjoy a pic of the front of my car.

Notice the Euro lights, the painted bumper impact strip, and the S600-style grill:

Here's a pic of the rear.

Please enjoy the rear impact strip painted the body color, the '94-'95 tail lights, and the polished 8-hole wheels:

Paul, that's a sharp looking car. I wished mine looked that good.

Paul,

I like your car as well! It reminds me of my silver 1994 E320. Here are a few pics.

db

Another
 

2

Another
 

3

PaulS,


What did you do to your grill?? I like the mod=)
Front turnsignals are made by whom????

Michael

The grill is an aftermarket grill that looks like the grill on a W140 chassis S600. They are also sometimes referred to as Avantgarde style grills.

These grills are available for C, E, and S classes.

If you have a 1994-1995 W124, then they are widely available.

If you have a 1986-1993 W124, then there is only one website in the U.S. that sells it:

www.formymercedes.com

There are two websites in Germany that sell these grills. I have ordered many parts from both websites:

www.eris-car.de
www.matrixcar.de

Most guys that replace their turn signals, also called front corners, install clear corners. Mine are original equipment clear / yellow corners that came on 1994-1995 W124's.

Our cars are almost identical.

I like your front license plate delete panel. I wish I would've bought one, too, and painted it when I had my front and rear bumpers resprayed.

I'm not a fan of chrome wheels, but your chrome 8-holers sure look good.

The 8 hole wheels found on 1992-1994 W124's came painted silver and clear-coated.

1995 8 hole wheels are "special edition" wheels, and came polished and clear coated. I was very lucky to buy these from a fellow forum member for a good price.

I did spend over $400 getting them refinished, though.:D

Are you guys ready for these pics?

Here is one of my steering wheel, shift knob, and chrome shift surround:

Here's a closer shot of the steering wheel:

Here's a closer shot of the shift knob and surround:

Can you say "Illuminated Sill Plates"?

Interior
 

Paul,

I like your interior as well. I'm thinking about the chrome shifter surround and a new knob/shifter. How difficult is it to install?

I had my reservations about the chrome wheels. I was swayed by some friends and am happy with them. I'm running the wreath crest centers currently and plan on switching to the standard chrome centers during my next tire rotation. These wheels are super easy to wash and wax.

I had to have my front and rear bumper covers repainted (previous owner parking on the street) and took the opportunity to install the front tag delete panel. It turned out nice and is pretty rare to see.

I also had to replace the driver side door sill on my car due to the strips coming up. I just went with the OE piece.

Here are a few pics of my stock interior.

ddb

2

3

Couple of sharp looking MB's, Paul S interior is very nice. How much $ have you spent getting your car to look that good if I may ask? Did you send me the tester Jpeg? My email server is not very good.

Here is a pic of the diagnostic scan tool.

You can see in the pic that the LED light needs to be mounted on something. An empty 35 MM film container works fine.

Arthur Dalton deserves credit for the pic, too:

I have spent about:

$500 on the steering wheel
$85 for the shift knob
$50 for the chrome shift surround
$200 for the illuminated sill plates
$500 for the 8 hole wheels and refinishing
$3,000 for the Nakamichi sound system, speakers, etc.
$250 to respray the bumpers
$100 for the S600 grill

In other words, too much money.
:eek:

I made do everything but the nakamichi, the stereo on it sounds good even though the trunck changer sucks. BTW thanks for the diagram.

diagnostic scan tool schematic, how to use?
 

"Here is a pic of the diagnostic scan tool.

You can see in the pic that the LED light needs to be mounted on something. An empty 35 MM film container works fine.

Arthur Dalton deserves credit for the pic, too:

suginami has attached this image:"


Not sure if the picture will copy....
Could some one tell me how this tool is used on a 93 300E?

Also, does any one have a list of codes for this same year and model?